as Donald Baverstock
as Marco Polo (archive footage)
as George Biddle(1 ep)
as Boucher(1 ep)
as Bill(1 ep)
as Larry
as Supt. Wilf Penfield(5 eps)
as Richard
as Edmund Vibart(1 ep)
as Bernard Tindale(1 ep)
as Mike Stewart(1 ep)
as Ross(1 ep)
as Ken(1 ep)
as Quartus(4 eps)
as Det. Insp. John Wrath(1 ep)
as St John Peter(1 ep)
as Spencer(13 eps)
as Det. Insp. Parker(4 eps)
as Chief Inspector Parker
as John Young
as Morcant(1 ep)
as Douglas Blandford(1 ep)
as Charles
as Peter Royal(1 ep)
as Det. Inspector Parker(5 eps)
as Det. Inspector Parker(5 eps)
as Roderick Varley(1 ep)
as Paddy(1 ep)
as Jack Parker
as Robert Manning
as Lt. Cmdr. Donald Kimberly
as Presenter
as Kellaway
as Number One Hundred(1 ep)
as Dr Frazer(1 ep)
as Stephen Kershaw
as Surgeon(1 ep)
as Engineer at dam
as Stephen Kershaw(1 ep)
as Tommy Eastwind(1 ep)
as Prinny
as Oliver Marchant
as Johnny Rich(10 eps)
as Mr. Clayton
as Marco Polo
as Mike Williams
as Marco Polo(7 eps)
as Wicket(1 ep)
as Sir Geoffrey Despard
as Richard Webb
as Terry
as Bertrand Tamblin(1 ep)
as 2nd Prisoner of War
as Mosquito Pilot
as Agila(1 ep)
as Erskine Craig
as Nicholson(1 ep)
as Jacques Beronne(1 ep)
as Alan Bradley(121 eps)
as Tom Braddock(1 ep)
as Johnny Watson(1 ep)
as Erskine Craig(1 ep)
as Peter(1 ep)
as Jack Hubb(1 ep)